drmgr: Introduce get_my_partner_drc_index()

get_my_partner_drc_index() is called to retrieve DRC index from the "ibm,multipath-partner-drc" property. This property is available in the parent device node if the device has miltipath partner device. "ibm,multipath-partner-drc" has the DRC index of the partner device. Signed-off-by: Haren Myneni <[email protected]> Signed-off-by: Tyrel Datwyler <[email protected]>
ibm-power-utilities · Jul 26, 2024 · aa5feef · aa5feef
1 parent 3a7e774
commit aa5feef
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diff --git a/src/drmgr/common_ofdt.c b/src/drmgr/common_ofdt.c
@@ -609,6 +609,26 @@ get_my_drc_index(char *of_path, uint32_t *index)
 	return rc;
 }
 
+/**
+ * get_my_partner_drc_index
+ *
+ * @param of_full_path
+ * @param index
+ * @returns 0 on success, !0 otherwise
+ */
+int get_my_partner_drc_index(struct dr_node *node, uint32_t *index)
+{
+	int rc;
+
+	if (node == NULL)
+		return -1;
+
+	rc = get_ofdt_uint_property(node->ofdt_path,
+				"ibm,multipath-partner-drc", index);
+
+	return rc;
+}
+
 /**
  * drc_name_to_index
  * @brief Find the drc index for the given name

diff --git a/src/drmgr/ofdt.h b/src/drmgr/ofdt.h
@@ -174,6 +174,7 @@ struct dr_connector *search_drc_list(struct dr_connector *,
 				     struct dr_connector *, int, void *);
 
 int get_my_drc_index(char *, uint32_t *);
+int get_my_partner_drc_index(struct dr_node *, uint32_t *);
 int drc_name_to_index(const char *, struct dr_connector *);
 char * drc_index_to_name(uint32_t, struct dr_connector *);
 int get_drc_by_name(char *, struct dr_connector *, char *, char *);